CVE-2026-76480, CVE-2026-76482, CVE-2026-76483, CVE-2026-76484CiscoServers and softwareOctober 7, 2026

Cisco License (Smart Software Manager) On-Prem Security Hardening Release: October 2026

Critical 10

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the engineering team for Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These vulnerabilities were found during internal testing and are not known to be actively exploited. To assist customers in patching and streamline the disclosure process, Cisco has grouped these issues by their underlying vulnerability class — Common Weakness Enumeration (CWE) — and assigned a single Common Vulnerabilities and Exposures identifier (CVE ID) to each CWE grouping. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ssm-Ph77wdhf Security Impact Rating: Critical CVE: CVE-2026-76480,CVE-2026-76482,CVE-2026-76483,CVE-2026-76484

What to do

Install the fixed versions listed in the official advisory. If you cannot update right away, apply the workarounds or mitigations it describes and limit access to the affected service.

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Details

Vendor
Cisco
Product
Cisco License On-Prem
CVE
CVE-2026-76480, CVE-2026-76482, CVE-2026-76483, CVE-2026-76484
CVSS score
10
Actively exploited
Not known at this time
Source
Cisco PSIRT – original advisory
Published
October 7, 2026

The description and the recommended action are quoted from the public advisory (the action is our generic advice); severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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